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Re: How to Solar Charge an Electric Bicycle

Posted: Jul 05 2016 10:22am
by LockH
"Big solar is leaving rooftop systems in the dust"
http://finance.yahoo.com/news/big-solar ... 01843.html
Today, large systems that sell directly to utilities dominate. They are expected to account for more than 70 percent of new solar added to the grid this year, according to industry research firm GTM Research.
:)
A major difference among the studies is whether they consider as part of the equation the environmental benefits of solar, which can be difficult to quantify.
[sigh]

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 06 2016 7:06am
by LockH
"Super lightweight solar panels for flat roofs install in under two minutes"
http://inhabitat.com/super-lightweight- ... o-minutes/
solar panels like sun but not heat, so their performance decreases with every increase in temperature. Spring panels boast a lower temperature coefficient curve than most technology on the market

(Company out of Milpitas, CA)
http://www.beamreachsolar.com/

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Re: How to Solar Charge an Electric Bicycle

Posted: Jul 16 2016 6:20am
by LockH
DIY Solar Pocket Factory Machine Can Print a Solar Panel Every 15 Seconds!
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http://inhabitat.com/solar-pocket-facto ... 5-seconds/


Re: How to Solar Charge an Electric Bicycle

Posted: Jul 19 2016 10:41am
by LockH
LockH wrote:"Electric bicycle charging station to make US debut"
http://www.taipeitimes.com/News/biz/arc ... 2003630061
The first Taiwan-made solar energy charging station for electric bicycles is to become operational in Liberty State Park in Jersey City, New Jersey, in spring next year, the Ministry of Economic Affairs said yesterday.
... and industry/trade magazine pv magazine - "the magazine for experts" - takes note:
"Billion Electric unveils Solar Powered Electrical Bicycle Station in New York Liberty Park"
(fluff piece actually written by Billion Electric.)
http://www.pv-magazine.com/services/pre ... z4ErwljA2m

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 19 2016 11:26am
by LockH
Starting next year, Sistine Solar will begin selling “SolarSkin” panels that blend in with the texture of a roof by mimicking tiles, slate, wood shingles and other materials. Want a truly green roof? Sistine Solar panels can be made to look like grass.


Seen here:
https://www.yahoo.com/news/green-roof-s ... 15555.html

http://www.sistinesolar.com/

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 20 2016 7:05am
by LockH
"Mobile Solar Flower replaces the current connection" (Sorry, Giggle (sp?) Translate from German)
http://app.wiwo.de/technologie/green/fa ... tml?mwl=ok
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The name says it all: With its fan-deployed elements, the solar module Smart Flower Pop + like a flower acts. And just like a flower tends towards the sun, does the invention of Austria. With sunrise unfolds the 18 square meters of solar panels. Motors on two axes align the monocrystalline photovoltaic elements in the 90-degree angle to the sun. Thus, the energy yield is higher than that of fixed-roof systems. The manufacturer speaks of up to 40 percent more yield.

The cooling and self-cleaning contribute to higher electricity. Since the "petals" are well ventilated, no heat build form. Remove brushes on the underside of the solar modules at each opening and closing deposits. An anemometer is from 54 km / h Wind speed command for the change in the horizontal safety position. From 63 km / h Wind speed solar elements go completely one, just like in the night mode.

Smart Flower Pop + has a nominal output of 2.31 kWp. In stand not only an AC inverter is housed, but also batteries cells with either 2.3 or 4.6 kWh of storage capacity. The latter version is intended for remote homes that are not connected to a public power grid. "Independence is an essential issue for us. Here, we are not only important to produce electricity as possible, but also the efficient use, "says CEO Alexander Swatek.

According to the manufacturer provides a Smart Flower vary by region 3400-6200 kWh per year. It could in itself in Central Europe the average needs of a family of four blankets (4,000 kWh). To import the price of around 15,000 euros again, but it would need the possibility in well connected regions not more than 15 years - in remote areas it pays off more quickly.

25 square shadow free space needed

The "petal" has in the extended state has a diameter of 4.74 meters. For his movements a Smart Flower requires a shadow-free space of 25 square meters in the garden. The installation of the solar system takes place within one hour. The Smart Flower is fixed either with 1.60-meter ground screws or on a concrete foundation. Thus, disassembly is possible. The system comes easy when you move from a rented house with.

How simple it all is to work, also shows this promotional video: [ED: Video missing]

Designed and manufactured the Smart Flower Pop + in Austria from the Smart Flower Energy Technology GmbH. The was founded in 2010 and already received the Austrian Sonderstaatsspreis innovation "composite E-Novation Award" and the "Austria's Born Global Champion" Award of Commerce. The Smart Flower solar system is also available without batteries. The version Pop-e is designed as e-charging station for electric vehicles.
ihre Webseite:
https://www.smartflower.com/en

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 21 2016 1:28pm
by LockH
"Bright future for renewable energy on display at giant solar show" in San Francisco.
http://business.financialpost.com/diane ... solar-show

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Re: How to Solar Charge an Electric Bicycle

Posted: Jul 21 2016 2:08pm
by mountain biker
I'll take it. It will replace my canopy with no solar cells now. Hey anybody know of any cheap 36 volt agm solar charge controllers. I'm assuming pwm.

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 21 2016 2:37pm
by LockH
Hehe... Slow down buddy. Did ya read that article? In part:
A materials science breakthrough involving solar cells made from a material called perovskite will be introduced next year and will drive down solar cell costs and exponentially increase efficiency;
:shock: 8) :wink: :mrgreen:

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 22 2016 12:38pm
by LockH
Newz from USA. "The Obama Administration wants to make solar energy available to every American regardless of income. In that spirit, the White House just announced a partnership with six federal agencies – the Clean Energy Savings For All Initiative – to bring 1 gigawatt (GW) of solar to low- and moderate- income families by 2020. The goal is a tenfold increase over the president’s initial target set in his Climate Action Plan, which called for 100 megawatts (MW) of renewable energy on federally-assisted affordable housing by 2020."

Hint to ebikers. Move to "federally-assisted affordable housing". :wink:

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 26 2016 2:30pm
by LockH
"Revolutionary Sphelar Spherical Solar Cells Capture Sunlight From All Directions"
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http://inhabitat.com/revolutionary-sphe ... irections/

Called the Sphelar...
While some companies have addressed this with motorized frames that follow the sun’s path, Kyosemi has gone for a completely new approach that doesn’t need costly motors to work.
"energy conversion is close to 20% efficiency"

Re: How to Solar Charge an Electric Bicycle

Posted: Jul 27 2016 4:07am
by LockH
"An 'artificial leaf' could one day power the world with clean energy"
http://mashable.com/2015/08/20/solar-fu ... TzD7wrVaql
A solar-powered device developed by researchers at Monash University in Melbourne is replicating what plants and bacteria do with photosynthesis. Although it doesn't resemble a leaf exactly, it should be almost as environmentally friendly.
In a process called electrochemical water splitting, the scientists use commercial solar cells to generate hydrogen and oxygen by passing an electrical current through water. The process creates a hydrogen fuel, which is a much cleaner, sustainable form of energy than those that involve carbon because it creates no carbon dioxide.
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With their machine, the researchers have recently set a new energy efficiency world record for solar fuels. The machine can produce hydrogen fuel using an artificial version of photosynthesis at more than 22% energy efficiency, surpassing the previous record of 18%. In most plants, the energy efficiency level is typically between 1% and 2%, he said.
Got those folks at Harvard beat (mentioned earlier in this thread w/a system that runs "only" about 10% efficient). :)

Re: How to Solar Charge an Electric Bicycle

Posted: Aug 29 2016 10:33pm
by LockH
"Masdar/MIT solar cell makes a grab for world record with 35% efficiency and lower cost"
http://inhabitat.com/masdarmit-solar-ce ... ower-cost/
The Masdar Institute-MIT breakthrough involves a two-layered solar cell designed as a “step cell” that increase conversion of solar energy, but at a much lower cost than existing multilayered solar technology.
... unique, because it layers the typical low-cost silicon solar cell with a gallium arsenide phosphide-based solar cell.

Re: How to Solar Charge an Electric Bicycle

Posted: Aug 30 2016 7:58am
by LockH
"Solar" as hydro-electric generator:


Currently (hehe) on kickstarter:
https://www.kickstarter.com/projects/hy ... -fits-into

Right now,
549 backers
$131,331 pledged of $80,000 goal
12 days to go


produces 2.5W - 5W and takes about 4.5 hours to fully charge 6,400mAh built-in Li battery.
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Re: How to Solar Charge an Electric Bicycle

Posted: Sep 01 2016 2:42pm
by LockH
Def. now gotta go "velomobile" cover body-style...

"Transparent solar panels are 50 times more productive than regular photovoltaics"
Image

https://www.yahoo.com/tech/transparent- ... 12792.html

In part:
“We apply liquid coatings to glass and plastic surfaces at ambient pressure, and dry these coatings at low temperature to produce transparent films,” Conklin continued. “We repeat these processes, and then collectively these coatings — and thus the glass and plastic surfaces — generate electricity.”

Of these coatings, the most important is the so-called “Active Layer,” through which electricity is generated by the absorption of light, and the transparent conductors, which allow the electricity to be extracted. “[The] coatings are primarily organic, primarily from carbon, hydrogen, nitrogen, and oxygen,” Conklin said. “We are constantly refining each of the layers to improve on the power we’re able to extract from these coatings and enhance their manufacturability.”
http://solarwindow.com/

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 03 2016 2:26am
by LockH
"Solar energy rolls out like a carpet with groundbreaking Roll-Array photovoltaics"
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On their website, Renovagen claims the panels will be able generate up to 100kWp – 10 times more power than other transportable solar panels on the market today.
Seen here:
http://inhabitat.com/solar-energy-rolls ... ovoltaics/

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 04 2016 1:09am
by LockH
"IBM’s New Sunflower-Shaped Solar Concentrators Produce Energy AND Fresh Water!"
http://inhabitat.com/ibms-new-sunflower ... esh-water/
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The High Concentration PhotoVoltaic Thermal (HCPVT) system can concentrate the sun’s radiation 2,000 times and convert 80 percent of it into useful energy, generating up to 12 kilowatts of electrical power and 20 kilowatts of heat on a sunny day—enough to power several average homes. Oh, and it can also produce clean, fresh water as a result of the process used to cool the solar cells!


http://www.airlightenergy.com/

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 05 2016 4:31am
by LockH
"The Price of Solar Is Declining to Unprecedented Lows"
("Despite already low costs, the installed price of solar fell by 5 to 12 percent in 2015")
http://blogs.scientificamerican.com/plu ... nted-lows/
Now, the latest data show that the continued decrease in solar prices is unlikely to slow down anytime soon, with total installed prices dropping by 5 percent for rooftop residential systems, and 12 percent for larger utility-scale solar farms.
The "latest data": "Median Installed Price of Solar in the United States Fell by 5-12% in 2015":
http://newscenter.lbl.gov/2016/08/24/me ... 5-12-2015/
Within the market for distributed solar photovoltaic (PV) systems, installed prices in 2015 declined by $0.20-per-watt (W) or 5% year-over-year for residential systems, by $0.30/W (7%) for smaller non-residential systems, and by $0.30/W (9%) for larger non-residential systems. Prices for utility-scale PV systems that came online in 2015 fell by $0.30/W (12%) from the prior year. Preliminary data for the first six months of 2016 suggest that prices have continued to fall within most states and market segments.

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 05 2016 4:51am
by LockH
[shudder]... "Solar Energy Isn’t Always as Green as You Think"
http://spectrum.ieee.org/green-tech/sol ... -you-think

... silicon tetrachloride ...three or four tons for every ton of polysilicon. Hydrofluoric acid... :cry:

Thin films to the rescue!... maybe...

"uses compounds containing the heavy metal cadmium" :cry:

Chinese electricity roughly twice the carbon intensity of U.S. electricity... :cry:

Water is yet another issue. :cry:

the darker side of this technology. [sigh]

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 05 2016 5:57am
by LockH
"High-flying solar balloon farms could harness the sun’s energy miles above the clouds"
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http://inhabitat.com/high-flying-solar- ... he-clouds/

NextPV:
http://www.liapv.rcast.u-tokyo.ac.jp/NextPV/Home.html

"... capture solar energy in the one place where the sun is shining virtually all the time: above the clouds."

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 09 2016 11:13am
by LockH
"Here's How Much Power You'd Get From Solar Panels on Your Roof"
https://www.yahoo.com/news/tells-much-p ... 39341.html

... and briefly mentions my favourite, wind energy:
https://endless-sphere.com/forums/viewt ... 41&t=62084

(Much more "low tech", and can operate in the dark... sometimes. Maybe got that bird killing thingee licked now as well.)

Hehe:
https://beta.renewables.ninja/

A new kinda "ninja" for ES...

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 10 2016 9:54am
by LockH
LockH wrote:"Masdar/MIT solar cell makes a grab for world record with 35% efficiency and lower cost"
http://inhabitat.com/masdarmit-solar-ce ... ower-cost/
The Masdar Institute-MIT breakthrough involves a two-layered solar cell designed as a “step cell” that increase conversion of solar energy, but at a much lower cost than existing multilayered solar technology.
... unique, because it layers the typical low-cost silicon solar cell with a gallium arsenide phosphide-based solar cell.
"New Swiss solar cell doubles the efficiency of residential systems"
http://inhabitat.com/new-solar-cell-fro ... l-systems/

Image

"... reportedly has a solar energy conversion rate of 36.4 percent, one percent more than the Masdar/MIT innovation."

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 14 2016 6:49pm
by lwik
Hi all, 1st post. I have a 2000 watt motor for my touring bike. I use solar panels to charge when I stop for lunch and there are no AC connections to be found. I use a 300 watt fold out solar panel that I built a special pannier for for my front rack.

It uses a DC to DC charge converter to bring the 24V from the panels to 58 volts. In reality, the panels with full sun at 11am or so produce about 250 watts. It has fully charged my 58V 15AH battery in around 3 hours. Wall charger will do it in 2h:20m. The dc to dc charge convert is 95% efficient and much better way to charge from a panel then converting to AC and then DC.

I finished my first bike trip from Sacramento to SF, then down the 1 to LA. Total miles were 593 and took 12 days. But, half the time it was over cast by the ocean forcing me to have a long lunch in a restaurant while charging.

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 14 2016 9:47pm
by LockH
^^ Very jealous. :) Thought? To add to bike a wind break/shield up front, and just to leave your panels plastered overtop in the sunlight all day (and night?) long. Weigh much? Have accumulated some plastic coroplast local election signs. V. light weight by themselves.

Maybe?

Re: How to Solar Charge an Electric Bicycle

Posted: Sep 15 2016 12:14am
by lwik
LockH wrote:^^ Very jealous. :) Thought? To add to bike a wind break/shield up front, and just to leave your panels plastered overtop in the sunlight all day (and night?) long. Weigh much? Have accumulated some plastic coroplast local election signs. V. light weight by themselves.

Maybe?
Folded that 300 watt panel is equal to a 4x8 sheet of plywood. It would be difficult to ride with it open to charge. Instead of having a small solar panel on it all the time hoping to get a few small watts I worked it into my lunch break while on tour. 90 minute lunch break I can collet close to 400 watts.

All of my electronic devices are all USB rechargeable. So when I hit the camp site at night I use the 52V battery and use another Dc to DC converter to step down to 12 volts. I then use a cigarette lighter attachment to charge all of my USB devices. I use a 6 port USB charger that connects to the cigarette lighter, there are also 2 extra ports on the cigarette lighter adaptor.

I sold my house last year and built my ultimate touring /bug out vehicle. Next February I set off on a year long trip across the states and into Europe.